Cumulative Percentage Frequency Graph

1968 ◽  
Vol 33 ◽  
pp. 57-69 ◽  
Author(s):  
J. E. Kerrich ◽  
D. L. Clarke

For many years archaeologists interested in the study of the Palaeolithic in North Africa and Eurasia have been using cumulative percentage frequency graphs for the comparison of prehistoric artefact assemblages. For examples we refer to the references at the foot of this text. However, it is perhaps time to carefully review this technique and its future utility.Statistical techniques and mathematical models are slowly infiltrating and reshaping the discipline of archaeology—increasing the power and depth of both analysis and synthesis. It is perhaps already possible to distinguish the cumulative advance of these techniques in archaeology from the initial role of demonstrative aids and methods of data display towards an increasingly powerful analytical role with a capacity for predictive inference. In the ranks of the first generation we have the early use of graphs, frequency polygons and histograms for mapping severely limited numbers of percentages or attribute ratios. In the second generation of statistical techniques the impact of the computer is felt for the first time and archaeology is developing an array of exploratory attempts to integrate the probing capacity of such methods as factor analysis, matrix analysis and principal component analysis.


2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 460-460
Author(s):  
Robert W Godfrey ◽  
Sue A Lakos

Abstract Determining when a ewe is in estrus is important when using estrous synchronization and artificial insemination in sheep. This study was conducted to compare the efficacy of estrus detection patches (Estrotect™) and rams wearing marking harnesses for monitoring estrus in synchronized hair sheep ewes. St. Croix White (STX) ewes (3.5 ± 0.3 y of age, 89.7 ± 2.2 d post-partum) were synchronized using progesterone releasing inserts (Eazi-Breed™ CIDR) for 12 d. On the day of CIDR removal (d 1) ewes were administered prostaglandin (Lutalyse®; 15 mg i.m.) and placed with fertile STX rams in 0.55 ha pastures. One group of ewes (n =10; MH) was placed with a ram wearing a marking harness and a second group (n = 16; EP) had estrus detection patches placed on their rumps before being placed with a ram without a harness. Estrus detection was conducted using visual observations twice a day through d 7. A ewe was considered to be in estrus when crayon marks were observed on the rump or the patch was activated, based on product guidelines. Cumulative percentage of ewes in estrus was analyzed using the CATMOD procedure with treatment, day and the interaction in the model. All patches stayed in place on the EP ewes through d 7. By d 4 90% of MH ewes and 75% of EP ewes had been observed in estrus (P < 0.05). By d 7 90% of MH ewes and 81.25% of EP ewes had been observed in estrus (P < 0.05). With costs of $1.33 per patch or $29.33 for one harness and crayon the patches may be more economical when dealing with up to 21 ewes per ram. Estrus detection patches can be used on hair sheep ewes to detect estrus just as effectively as a ram with a marking harness.


1991 ◽  
Vol 81 (2) ◽  
pp. 215-222 ◽  
Author(s):  
M. Salleh M. Ardawi

1. The effect of total parenteral nutrition with or without glutamine enrichment was studied in septic rats after 4 days of treatment. 2. Septic rats treated with glutamine-enriched total parenteral nutrition survived sepsis significantly better than other TPN-treated septic rats: the cumulative percentage of deaths over 4 days in septic rats treated with glutamine-enriched total parenteral nutrition was 25% compared with 55% in septic rats given total parenteral nutrition without glutamine and 70% in septic rats given glucose. 3. Glutamine-enriched total parenteral nutrition resulted in improved nitrogen balance in septic rats: the cumulative nitrogen balance over the 4 days of treatment was the least negative as compared with other groups of septic rats. 4. The rate of loss of intracellular glutamine in skeletal muscle was markedly decreased (P < 0.001) in response to glutamine-enriched total parenteral nutrition in septic rats. 5. The rate of protein synthesis was increased (21.2%) and the rate of protein degradation was decreased (35.5%) in response to glutamine-enriched total parenteral nutrition in septic rats. 6. It is concluded that the administration of glutamine-enriched total parenteral nutrition is beneficial to septic rats and possibly to septic patients.


2021 ◽  
Vol 73 (6) ◽  
pp. 386-390
Author(s):  
Rattanavalai Nitiyarom ◽  
Nampen Siriwat ◽  
Wanee Wisuthsarewong

Objective: To observe changes in transepidermal water loss (TEWL) at different times after water immersion.Materials and Methods: TEWL values were measured before water immersion and at 3, 5, 10, 15, 20, and 30 minutes after immersion of the skin in water for 5 minutes.Results: Forty-one healthy volunteers were enrolled with an average age of 30.4±5.5 years. Twenty-five subjects were female and sixteen were male. The TEWL value before water immersion (TEWLbaseline) was 13.16±7.27 g/m2/h and TEWL values at 3, 5, 10, 15, 20 and 30 minutes after immersion were 23.21±7.67, 16.12±3.42, 14.76±6.36, 14.45±6.67, 13.53±4.67 and 12.96±5.18 g/m2/h, respectively. After immersion, TEWL values at 3 and 5 minutes statistically increased compared to TEWLbaseline (p<0.001). TEWL values between 10 to 30 minutes gradually dropped with no statistically significant difference compared to the previous period and TEWLbaseline. Although total water loss from the skin occurred within 30 minutes, 56.9% of it occurred within 10 minutes after immersion. There was no significant difference between TEWLbaseline in males and females but the TEWL values at 3, 5 and 15 minutes after immersion in males was higher than in females (p<0.05). Conclusion: TEWL statistically increased after water immersion for only 5 minutes. The cumulative percentage of TEWL was high within 10 minutes. Gender did not affect TEWL values before immersion; however, males experienced more water loss from the skin than females after immersion. Therefore, moisturizer should be applied immediately before TEWL occurs.


Author(s):  
Mouth cavity Microfora. ◽  
Teniola Temitayo Mary

The aim of the study is to evaluate and compare the antibacterial activity of ethanolic stem extract of (Wild African nutmeg) Pycnanthus angolensis (Welw.) and some commercially available toothpaste against bacteria isolated from the hidden resident mouth cavity microfora. Bacteria were isolated from swabs of apparently healthy individuals and were identified using Staining procedure biochemical tests and the use of Bergey’s manual of bacteria identification  The assay for antibacterial activity of Pycnanthus angolensis stem bark extract and the four toothpastes were determined using agar well diffusion method. The Gram positive bacteria isolated were Streptococcus sangus, Streptococcus ratti, Stomatococcus mucilaginous., Peptostreptococcus  sp., and Streptococcus mutans and the Gram negative bacteria were Veillonella atypical, Veillonella parvula, Veillonella dispar and Acidiaminococcus sp. Oral B toothpaste showed maximum efficacy of inhibition with inhibition zone diameter as wide as 20 mm at 100 mg/ml. Percentage frequency distribution of antibacterial activity of conventional toothpaste (Close-up) against hidden resident mouth cavity microfora depicts Acidaminococcus sp.13%, Veillonella parvula (10%), Veillonella dispar (12%), Peptostreptococcus  sp.(12%), Stomatococcus mucilaginous.(9%), Streptococcus ratti (13%), Veillonella atypical (11%), Streptococcus sangus (9%) and Streptococcus mutans (11%), Percentage frequency distribution of antibacterial activity of conventional toothpaste (Oral B toothpaste) against hidden resident mouth cavity microfora reveals Acidaminococcus sp.(11%,) Veillonella dispar (11%), Veillonella parvula (10%), Peptostreptococcus sp. (12%), Stomatococcus mucilaginous.(15%), Streptococcus ratti (11%), Veillonella atypical (8%), Streptococcus sangus (10%),  and Streptococcus mutans (12%), Percentage frequency distribution  of antibacterial activity of conventional toothpaste (MyMy toothpaste) against hidden resident mouth cavity microfora depicts Acidaminococcus sp.(12%), Veillonella dispar (9%), Veillonella parvula (8%), Peptostreptococcus sp.(10%), Stomatococcus mucilaginous.(16%), Streptococcus ratti (9%), Veillonella atypical (15%),Streptococcus sangus (9%) and Streptococcus mutans (12%), Percentage frequency distribution of antibacterial activity of conventional toothpaste (Olive toothpaste) against hidden resident mouth cavity microfora shows Acidaminococcus sp.(9%), Veillonella dispar (10%), Veillonella parvula (10%), Peptostreptococcus sp.(12%), Stomatococcus mucilaginous.(13%), Streptococcus ratti (10%) ,Veillonella atypical (17%), Streptococcus sangus (7%),  and Streptococcus mutans (12%). Pycnanthus Angolensis stem bark extract inhibited the growth of the oral bacterial isolates with of zones of inhibition diameter ranging from 6 mm to 17 mm at a concentration of 100mg/ml. Secondary metabolite (Phytochemical) screening shows the presence of flavonoids, tannins, saponins, alkaloids, reducing sugars, steroid, phenol, terpenoid, pyrrolozidine alkaloid, glycoside and cardiac glycoside with glycoside and terpenoid most present. However, anthraquinones and volatile oil were absent. With menial antibacterial activity, P. angolensis can be use in the formulation of herbal toothpaste. It should be advocated that Pycnanthus angolensis should be added to our convention toothpaste to improve the functional ingredient of the toothpaste and Plant-based traditional knowledge has become a recognized tool in search for new sources of drugs. It is clear that the use of these herbal plants can offer a platform for further research.


2014 ◽  
Vol 25 (1) ◽  
pp. 115-137 ◽  
Author(s):  
Kerry Lynn Sagebiel

AbstractPrevious interpretations of the occupation history of La Milpa, Belize, which were based on preliminary ceramic data, suggested that occupation of the site fluctuated dramatically from the Late Preclassic to the Terminal Classic (400 b.c.–a.d. 850). It was determined that the modest Late Preclassic village became a large Early Classic city with regal-ritual architecture and carved monuments. In Late Classic I, it appeared the site was nearly abandoned. Its reoccupation and exponential growth in Late Classic II was followed by rapid abandonment before the end of the Late Classic III/Terminal Classic. New ceramic analyses utilizing attribute analysis with an emphasis on formal modes has clarified the sequence and, in turn, softened the occupation curves. This article provides descriptions of the Late Classic I, II, and III ceramics, along with revised percentage frequency graphs of La Milpa's occupation history based primarily on the work of the La Milpa Archaeological Project (1992–2002).


Author(s):  
Abdulhamid Yusuf ◽  
Hakeem Bolarinwa ◽  
Lukman Animasahun ◽  
Yinusa Babatunde

An analysis of measured global solar radiation (GR) in Osogbo (7.77oN, 4.57oE, 288m) is presented in the form of hourly average, monthly average and percentage frequency distribution. The experimental data corresponds to a year data of 2017. The results reveal that the monthly average values of daily total radiation exhibit seasonal variation with maximum value in dry season month of March (16.59MJ/m2) and minimum value in wet season month of August (8.98 MJ/m2). The annual average GR value is 14.20 MJ/m2 while the annual cumulative GR is 5122 MJ/m2. The solar radiation climate of Osogbo has also been compared to those reported for a number of locations. The percentage frequency of days possessing irradiation rate greater than 15 MJ/m2 is 14 percent whereas that possessing less than 10 MJ/m2 is 61 percent. We conclude, based upon the above analysis that Osogbo is characterized by relatively low global solar radiation.


2017 ◽  
Vol 17 (1) ◽  
pp. 73-82
Author(s):  
M. O ADEDOKUN ◽  
A. T OLAWUMI ◽  
J. A. SOAGA ◽  
S. A. OLUWALANA ◽  
I M. R. MOLOGMHE

This study involved the economic analysis of different wood species in major sawmills in Abeokuta, Ogun State Nigeria. Two stage design sampling techniques were employed for this study. Descriptive statistics and Cost and Returns were used in the data analysis. Result showed that 62.5% engaged in the business were males, 81.7% were in age group between 31-50years, 48.3% had no formal education, and 88.3% entered into the business through apprenticeship and are mostly full-time. The result also revealed that 95.83% of the saw millers or plank sellers obtain their timber from the private forest and they mostly buy per species i.e. per tree. Moreover, among the timber species that were common in the saw mills include, Albizia coriaria (ayinre) has the highest percentage frequency of 66.7%, Anogeissus leiocarpus (orin dudu) has 44.2%, Cleistopholis sp. (okedo) 32.5% and Musanga cecropioides (aga) 1.7% with the least percentage frequency. Average girth sizes of timber species in sawmill, ranged from 3.00cm- 5.60cm and the average number of plank ranged from 6-29. The business could be seen as profitable, as the cost analysis revealed the average profit for each sawmill per month  in Abeokuta North, Odeda and Abeokuta South Local Governments’ Areas to have these profits (₦982,893.75, ₦790,083.524 and ₦790,083.524) respectively. It was recommended that government policy should be reviewed against illegal felling and over-exploitation of timber by imposing/enacting stiffer penalty or law to illegal feller. Government policy should also encourage individual plantation establishment to ensure continuity of forest products for posterity.  


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